condition mean min max ZT0-3 0.03778433333333333 0.0 0.113353 ZT4-7 0.0 0.0 0.0 ZT8-11 0.2681015 0.2681015 0.2681015 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0